The best email marketing software for most small businesses in 2026 is MailerLite for its price and ease, with Brevo close behind for businesses that send to large lists infrequently, and Mailchimp still the safest pick when you want the biggest integration library and do not mind paying more as you grow. Shops selling online should look at Klaviyo, creators at Kit, and service businesses that need real automation at ActiveCampaign.
The right answer depends less on features, which overlap heavily, and more on how each tool charges. Some bill by contacts, some by emails sent, and the difference can double your cost at the same list size. This guide prices out seven tools at small-business list sizes, names the catch in each, and tells you which type of business each one actually fits.
All prices are drawn from public pricing pages and recent third-party reports, and they change often, so verify current pricing before you buy.
How We Compared These Email Marketing Tools
We compared each tool's documented plan limits, published pricing at 500, 2,500, and 10,000 contacts, automation depth, template quality as described in vendor documentation, and patterns in verified user reviews. We did not send campaigns through these tools, and we do not report invented deliverability scores or open rates. Every tool was held to the same yardstick: total monthly cost at a realistic small-business list, how much automation you get for that money, how easy the editor is for a non-marketer, and what reviewers repeatedly complain about.
Quick comparison of the seven picks
| Tool | Free plan | Reported paid start | Pricing model | Best for |
|---|---|---|---|---|
| MailerLite | Yes, about 500 subscribers | About $10 per month | Subscribers | Most small businesses |
| Brevo | Yes, 300 emails per day | About $9 per month | Emails sent | Large lists, occasional sends |
| Mailchimp | Yes, 250 contacts | About $13 per month | Contacts | Integrations and familiarity |
| Kit | Yes, up to 10,000 subscribers | About $33 per month | Subscribers | Creators and course sellers |
| Constant Contact | No, trial only | About $12 per month | Contacts | Local businesses and events |
| ActiveCampaign | No, trial only | About $15 per month | Contacts | Advanced automation |
| Klaviyo | Yes, 250 profiles | About $20 per month | Profiles | Online stores |
Prices are entry points at the smallest list size and rise with contacts. Verify current pricing on each vendor's site.
1. MailerLite is the best value for most small businesses
MailerLite keeps winning small-business roundups for one reason: it covers what most businesses need at a lower price than the big names. Recent reports list a free plan for about 500 subscribers and 12,000 emails a month, cut from 1,000 subscribers in 2025, and a Growing Business plan from about $10 a month with unlimited sends. The drag-and-drop editor, landing pages, signup forms, and visual automation builder are documented on every paid tier. Reviewers consistently praise the clean interface. The catches are an account approval step that can delay new users and fewer advanced reporting options than ActiveCampaign. See our MailerLite review for the full picture.
2. Brevo is cheapest when your list is big and your sends are few
Brevo charges by emails sent rather than contacts stored, which changes the math. The free plan is documented as allowing unlimited contacts with a cap of 300 emails per day, and paid Starter plans are reported from about $9 a month for a monthly send volume. A business with 8,000 contacts that emails twice a month pays far less on Brevo than on a contact-based tool. Brevo also bundles SMS, WhatsApp, transactional email, and a basic CRM. Reviewers note that the editor feels less polished than MailerLite's and that automation features are split across tiers. Our Brevo review goes deeper.
3. Mailchimp is the safe default if you need integrations
Mailchimp remains the most recognized name and has one of the largest integration libraries in the category. Recent sources report the free plan was cut to 250 contacts and 500 sends a month, Essentials starts at about $13 a month for 500 contacts, and Standard at about $20, which adds generative AI tools and richer automation. The recurring complaint is cost at scale: prices climb steeply past a few thousand contacts, and reports note Mailchimp bills for unsubscribed contacts unless you archive them. It is a good choice when a specific integration matters more than price. Our Mailchimp review covers the tiers.
4. Kit is built for creators who sell
Kit, formerly ConvertKit, offers one of the most generous free plans, reported at up to 10,000 subscribers, with paid Creator plans from about $33 a month for 1,000 subscribers. It is designed around tags rather than lists, sells digital products and paid newsletters directly, and has a creator recommendation network. For a coach, writer, or course seller, it fits naturally. For a bakery or plumbing company, its creator focus and higher paid price make less sense.
5. Constant Contact suits local businesses that run events
Constant Contact has no free plan but is reported to start at about $12 a month on its Lite tier, with Standard and Premium tiers above. It documents event registration, social posting, and phone and chat support, which local service businesses, restaurants, and community groups value. Reviewers praise its support and simplicity and criticize dated templates and contact-based pricing that grows quickly. Read our Constant Contact review for details.
6. ActiveCampaign is the pick for serious automation
ActiveCampaign is reported from about $15 a month billed annually for its Starter tier at 1,000 contacts, with more capable tiers above. Its documented strength is conditional automation: branching sequences, lead scoring, site tracking, and a built-in sales CRM on higher plans. Service businesses with long sales cycles get the most from it. The trade is a learning curve that reviewers mention often and costs that rise faster than MailerLite's. If you only send a monthly newsletter, it is more tool than you need.
7. Klaviyo is the right tool if you sell online
Klaviyo offers a free plan for 250 profiles and 500 emails a month, with paid email plans reported from about $20 a month. Its documented strength is ecommerce data: it pulls orders, browsing, and product catalogs from stores such as Shopify and WooCommerce to power abandoned cart flows, product recommendations, and revenue reporting. For a store, that data is worth the premium. For a business without a shopping cart, it is wasted. See our guide to the best email marketing for ecommerce.
The features that matter more than the feature list
Every tool above can send a newsletter, build a signup form, and run a basic automation, so long feature checklists rarely decide the purchase. Four things separate them in practice for a small business.
The first is a welcome sequence. A short series of emails sent automatically when someone joins your list is the single automation most small businesses should build first, and it is available on the paid entry tier of MailerLite, Brevo, Kit, and ActiveCampaign. On Mailchimp, multi-step automations are documented as fuller on Standard than on Essentials, so check which tier you need before comparing prices.
The second is deliverability support. All of these vendors document authentication setup through SPF, DKIM, and DMARC records, which major inbox providers now expect from bulk senders. What differs is how much hand-holding you get. Reviewers often credit MailerLite and Constant Contact with clear setup guidance, while ActiveCampaign and Klaviyo assume a little more technical comfort.
The third is the number of users. Many entry plans limit seats, which matters if an owner, an assistant, and an outside designer all need access. MailerLite's free plan, for example, is reported to include one user, and higher tiers add more.
The fourth is support access. Constant Contact documents phone support, which owners who are not comfortable with software value highly. Several cheaper tools limit free and entry plans to email or chat support, and some reserve priority help for higher tiers. If you will need someone to walk you through a domain setup, factor that in before choosing on price alone.
How to choose without overpaying
Start by counting two numbers: contacts and monthly sends. If your list is large but you send rarely, a send-based tool such as Brevo is likely cheapest. If you send weekly to a modest list, a subscriber-based tool such as MailerLite usually wins. Next, decide whether you need ecommerce data, creator monetization, or sales automation, because those needs point straight to Klaviyo, Kit, or ActiveCampaign. Finally, check exports: every tool here lets you export contacts, so starting cheap carries little risk. Our broader roundup of the best email marketing software covers tools for larger teams.
The bottom line: start with MailerLite if you want the best mix of price and ease, switch to Brevo if your list is large and your sends are few, and pay for Klaviyo or ActiveCampaign only when ecommerce data or advanced automation will earn back the cost.
